Garmin GPSMAP 378, GPSMAP 478 Owner’s Manual
GPSMAP 378/478
chartplotting receiver
Owner’s Manual
GPSMAP 478 shown
© Copyright 2006 Garmin Ltd. or its subsidiaries
Garmin International, Inc.
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Olathe, Kansas 66062, U.S.A.
Tel. 913/397.8200 or 800/800.1020
Fax 913/397.8282
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Garmin®, GPSMAP®, AutoLocate®, TracBack®, BlueChart g2®, BlueChart®, City Select®, MapSource®, and See-Thru® are registered trademarks of Garmin Ltd. or its
subsidiaries and may not be used without the express permission of Garmin. XM WX Weather and XM Radio are trademarks of XM Satellite Radio Inc.
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April 2006 Part Number 190-00683-00 Rev. A Printed in Taiwan
INTRODUCTION > ABOUT THIS MANUAL
INTRODUCTION
Thank you for choosing the Garmin® GPSMAP® 378/478, which
utilizes the proven performance of Garmin GPS and full-featured
mapping to create an unsurpassed portable marine navigation
chartplotter and automobile navigation device. Take a moment to
compare the contents of this package with the packing list on the
outside of the box; if any pieces are missing, contact your Garmin
dealer immediately.
About This Manual
To get the most out of your new navigation system, take time to read
this manual and learn the operating procedures for your unit. This
manual is organized into the following sections:
The Introduction contains the Table of Contents. The Getting
Started section provides an overview of the unit, how to turn the
unit on, and how to simulate navigation.
The Basic Operation in Marine Mode section provides you with
information about navigating with the GPSMAP 378/478 in Marine
Mode. The Marine Mode Pages and Features section reviews the
main pages and features in Marine Mode, such as using DSC and
Man OverBoard.
The Basic Operation in Automotive Mode section provides you
with information about navigating with the GPSMAP 378/478 in
GPSMAP 378/478 Owner’s Manual i
Automotive Mode. The Automotive Mode Pages and Features
section reviews, in detail, the main pages and features in Automotive
Mode, such as the Trip Data Page and creating waypoints.
The Main Menu section describes features found on the Main
Menu, and information on how to change settings.
The Using XM WX Weather section describes how to use the
optional GXM 30’s XM WX Satellite Weather features on your
GPSMAP 378/478.
If you have a Garmin Sounder Module connected to you
GPSMAP 378/478, refer to the Setting Up and Using Sonar section.
The Appendix contains specifications, optional accessories,
maintenance information, and other product information.
An Index is provided at the end of the manual for reference.
Manual Conventions
This manual uses the term Warning to indicate a potentially
hazardous situation, which, if not avoided, could result in death or
serious injury.
This manual uses the term Caution to indicate a potentially
hazardous situation, which, if not avoided, may result in minor
injury or property damage. It may also be used without the symbol
to alert you to avoid unsafe practices.
INTRODUCTION > TABLE OF CONTENTS
Table of Contents
Introduction ...........................................................................i
Caring for the GPSMAP 378/478 ........................................... iv
Warning .................................................................................... v
Caution .................................................................................... vi
Getting Started .....................................................................1
Unit Overview .......................................................................... 1
Charging the GPSMAP 378/478 .............................................. 2
Turning On the GPSMAP 378/478 .......................................... 3
Getting Satellite Signals ......................................................... 4
Using the GPSMAP 378/478 Keypad ..................................... 7
Using the GPSMAP 378/478 ................................................... 8
Simulator Mode ..................................................................... 12
Basic Operation In Marine Mode ......................................13
Marine Mode Page Sequence ............................................... 13
Navigating in Marine Mode ................................................... 14
Finding an Item ...................................................................... 17
Creating and Using Routes .................................................. 20
Creating and Using Waypoints ............................................ 25
Managing Your Tracks .......................................................... 36
Following a Marine Route ..................................................... 40
Marine Mode Pages and Features ...................................42
Map Page ................................................................................ 42
Compass Page ....................................................................... 48
Highway Page ........................................................................ 51
Active Route Page ................................................................. 53
Position Data Page ................................................................ 54
XM Audio Page ...................................................................... 55
Basic Operation In Automotive Mode ..............................59
Automotive Mode Page Sequence ....................................... 59
Navigating in Automotive Mode ........................................... 60
Editing Your Route ................................................................ 63
Following an Automotive Route ........................................... 65
Automotive Mode Pages and Features ...........................66
Map Page ................................................................................ 66
Current Route Page ............................................................... 67
Trip Computer Page .............................................................. 68
Main Menu ..........................................................................69
GPS Tab .................................................................................. 69
Weather Tab ........................................................................... 70
XM Tab .................................................................................... 70
Route Tab ............................................................................... 71
ii GPSMAP 378/478 Owner’s Manual
INTRODUCTION > TABLE OF CONTENTS
Points Tab .............................................................................. 72
Track Tab ................................................................................ 72
DSC Tab .................................................................................. 73
Sonar Tab ............................................................................... 77
Alarms Tab ............................................................................. 77
Calendar Tab .......................................................................... 79
Celestial Tab .......................................................................... 80
Message Tab .......................................................................... 84
Display Tab ............................................................................ 85
Sound Tab .............................................................................. 86
Setup Tab ............................................................................... 87
Using XM WX Weather ......................................................96
Viewing XM WX Weather ....................................................... 96
Setting XM WX Weather Options ......................................... 96
Using the Weather Tab .......................................................... 99
Finding Weather Information ............................................. 102
Setting Up and Using Sonar ...........................................104
Showing Sonar on the Map Page ....................................... 104
Using the Sonar Page ......................................................... 105
Setting Up Sonar ................................................................. 109
Understanding Sonar .......................................................... 113
Appendix ..........................................................................116
Specifications ...................................................................... 116
Optional Accessories .......................................................... 117
Installation Information ....................................................... 118
Satellite Information ............................................................ 122
What is Differential GPS (DGPS)? ..................................... 122
LORAN TD Setup ................................................................. 124
Map Datums and Location Formats .................................. 126
Digital Selective Calling (DSC) ........................................... 127
Messages ............................................................................. 129
Data Field Options ............................................................... 131
Software License Agreement ............................................. 133
Product Registration ........................................................... 133
Limited Warranty ................................................................. 134
Weather Data Warranty ....................................................... 135
XM Satellite Radio Service Agreement .............................. 136
FCC Compliance .................................................................. 137
Index .................................................................................138
GPSMAP 378/478 Owner’s Manual iii
INTRODUCTION > CARING FOR THE GPSMAP 376C
Caring for the GPSMAP 378/478
The GPSMAP 378/478 case is constructed of high quality materials
and does not require user maintenance except cleaning.
Cleaning the Case
Clean the unit’s outer casing (except for the screen) using a cloth
dampened with a mild detergent solution and then wipe dry. Avoid
chemical cleaners and solvents that may damage plastic components.
Cleaning the Screen
The GPSMAP 378/478 screen should be cleaned using a soft, clean,
lint-free cloth. Water, isopropyl alcohol, or eyeglass cleaner can be
used if needed. If these are used, apply the liquid to the cloth and
then gently wipe the screen with the moistened cloth.
Storage
Do not store the GPSMAP 378/478 where prolonged exposure to
temperature extremes may occur (such as in the trunk of a car) as
permanent damage may result. User information, such as waypoints
and routes are retained in the unit’s memory without the need for
external power. It is always a good practice to back up important
user data by manually recording it or downloading it to a PC
(transferring it to MapSource).
Water Immersion
The GPSMAP 378/478 is waterproof to IEC Standard
60529 IPX7. It can withstand immersion in 1 meter of water for 30
minutes. Prolonged submersion can cause damage to the unit. After
submersion, be certain to wipe and air dry the unit before reuse or
charging.
iv GPSMAP 378/478 Owner’s Manual
Warning
INTRODUCTION > WARNING
Failure to avoid the following potentially hazardous situations could
result in an accident or collision resulting in death or serious injury.
When installing the GPSMAP 378/478 in a vehicle, place the unit securely
so that it does not interfere with vehicle operating controls or obstruct the
driver’s view of the road (see diagram).
Do not mount
where driver’s
field of vision is
blocked.
Do not place
unsecured on
the vehicle
dash.
When navigating, carefully compare information displayed on the GPSMAP
378/478 to all available navigation sources, including information from
street signs, visual sightings, and maps. For safety, always resolve any
discrepancies or questions before continuing navigation.
The GPSMAP 378/478 contains a replaceable, rechargeable lithium-ion
battery. The battery may present a risk of fire or chemical burn if mistreated.
• Do not recharge out of the unit, disassemble, heat above 140°F
(60°C), or incinerate.
• Keep used battery away from children.
• Only replace with Garmin Lithium-ion Battery Pack. Using another
Do not mount in front of an airbag
field of deployment.
Always operate the vehicle in a safe manner. Do not become distracted
by the GPSMAP 378/478 while driving, and always be fully aware of all
driving conditions. Minimize the amount of time spent viewing the screen of
the GPSMAP 378/478 while driving and use voice prompts when possible.
Do not enter destinations, change settings, or access any functions requiring
battery may present a risk of fire or explosion.
• Dispose of used battery or unit properly. Contact your local waste
disposal department for information on properly disposing of
lithium-ion batteries.
Use the electronic chart in the GPSMAP 378/478 only to facilitate, not to
replace, the use of authorized government charts. Official government charts
and notices to mariners contain all information needed to navigate safely.
prolonged use of the unit’s controls while driving. Pull over in a safe and
legal manner before attempting such operations.
WARNING: This product, its packaging, and its components contain chemicals known to the State of California to cause cancer, birth defects, or reproductive
harm. This Notice is being provided in accordance with California’s Proposition 65. If you have any questions or would like additional information, please refer to
our Web site at
http://www.garmin.com/prop65.
GPSMAP 378/478 Owner’s Manual v
INTRODUCTION > CAUTION
Caution
Failure to avoid the following potentially hazardous situations may
result in injury or property damage.
The GPSMAP 378/478 is designed to provide you with route suggestions. It
does not reflect road closures or road conditions, traffic congestion, weather
conditions, or other factors that may affect safety or timing while driving.
Use the GPSMAP 378/478 only as a navigational aid. Do not attempt to use
the GPSMAP 378/478 for any purpose requiring precise measurement of
direction, distance, location, or topography.
Map Data Information: One of the goals of Garmin is to provide customers with the most complete and accurate cartography that is available to us at a reasonable
cost. We use a combination of governmental and private data sources, which we identify in product literature and copyright messages displayed to the consumer.
Virtually all data sources contain inaccurate or incomplete data to some extent. In some countries, complete and accurate map information is either not available or
is prohibitively expensive.
vi GPSMAP 378/478 Owner’s Manual
The Global Positioning System (GPS) is operated by the United States
government, which is solely responsible for its accuracy and maintenance.
The government’s system is subject to changes which could affect the
accuracy and performance of all GPS equipment, including the GPSMAP
378/478. Although the GPSMAP 378/478 is a precision navigation device,
any navigation device can be misused or misinterpreted and, therefore,
become unsafe.
GPSMAP 378/478 Owner’s Manual 1
GETTING STARTED > UNIT OVERVIEW
GETTING STARTED
Unit Overview
The GPSMAP 378/478 is an all-in-one, versatile color chartplotter and automobile navigator—perfect for land or water. This portable GPS
navigator features a 256-color TFT display that is easy to read in bright sun and includes a built-in g2 cartography (GPSMAP 478) and
built-in lake cartography (GPSMAP 378), and pre-loaded City Navigator NT
directions. With the optional GXM 30 antenna and a subscription to XM WX Satellite Weather, users will have constant access to NEXRAD
radar, lightning, wind speed, wave direction, and more. In addition, the GPSMAP 378/478 offers XM Satellite Radio capabilities featuring
more than 160 digital channels of commercial-free music; more than 30 channels of news, sports, talk, and entertainment; and more than 20
dedicated channels of XM Instant Traffic & Weather.
GPS antenna
256-Color TFT display
with backlighting
Backlit keypad for easy nighttime operation
Detachable GPS antenna
collapses for storage.
Be sure the antenna is
up (as shown here)
to receive satellite
signals. See the
“Appendix”, page
122, for instructions
on removing the
antenna.
External power
connector under
weather cap
USB/GXM 30
antenna connector
under weather cap
®
to provide you with automatically generated turn-by-turn
Battery pack. Press tab down
to remove battery pack for
replacement, if necessary.
Slot for optional data card
Serial number
Headphone/stereo jack
under weather cap
2 GPSMAP 378/478 Owner’s Manual
GETTING STARTED > CHARGING THE GPSMAP 378/478
Charging the GPSMAP 378/478
Before using the unit, you might need to charge the battery in the
GPSMAP 378/478. Plug the unit into an external power source to
charge. You can use the unit while it is charging.
If you do not want to use the unit, but you would like to charge the
battery, you can put the unit into Charge Mode. Connect the unit to
an external power supply. Press and hold the POWER key. Instead
of completely turning off, the unit now goes into Charge Mode.
To charge the unit’s battery:
1. Lift the rubber weather cap to expose the power connector
on the back of the unit. See the image on page 1 for
connector location.
2. Align the notches and push the plug into the connector until
fully seated.
3. Plug the 12 Volt adapter into an available AC outlet, or
cigarette lighter receptacle if you have a cigarette lighter
adapter. Use care when routing the cable; be certain that it
does not interfere with vehicle operation.
NOTE: While in Charge Mode, the unit draws a small amount
The unit begins charging as soon as external power is applied.
Placing the unit in Charge Mode charges the unit more quickly than
when the unit is turned on and reduces draw on the vessel/vehicle
battery.
Information About Charge Mode
Applying external power to the GPSMAP 378/478 automatically
turns on the unit for full operation. If the battery is present and needs
to be charged, the external power source charges the battery while
After using the unit a lot, you might notice that the lithium-ion
battery in the unit is not holding a charge any more. This is common
for lithium-ion batteries. Contact Garmin or your Garmin dealer to
order a battery pack replacement if you are experiencing charging
issues with your battery.
the unit is in use.
Charge Mode
of current from the vessel/vehicle battery. To avoid discharging
the vehicle’s battery, disconnect the external power cable from
the GPSMAP 378/478 when not in use for several days.
GETTING STARTED > TURNING ON THE GPSMAP 378/478
Turning On the GPSMAP 378/478
The first time you turn on your new GPSMAP 378/478, the GPS
receiver must collect satellite data and establish its current location.
To ensure proper initialization, the GPSMAP 378/478 is shipped
from the factory in AutoLocate mode, which allows the receiver to
“find itself” anywhere in the world. Before you turn on the unit to
start initialization, be sure that the antenna is rotated up as shown on
page 1, and it has a clear and unobstructed view of the sky to receive
satellite signals.
Adjusting the Backlight and Volume
You can adjust the backlight to see the display better. If you are
using the External Speaker with 12/24-Volt Adapter Cable with
the GPSMAP 378/478 or you have headphones plugged into the
headphone jack, you can adjust the volume level of the audio output.
To adjust the backlight level or volume:
1. Press and quickly release the POWER key.
2. Press up on the ROCKER to increase the brightness or
To turn the GPSMAP 378/478 on and off:
1. Press and hold the POWER key. When the unit turns on, a
tone sounds and the Warning Page appears.
Warning Page
2. Read the warning, and then press ENTER to continue.
3. To turn off the GPSMAP 378/478, press and hold the
POWER key again.
3. Press ENTER or QUIT to close the Backlight/Volume
4. Press MENU to view the options menu.
press down to decrease. Press right to raise the volume or
left to lower.
adjustment window.
Battery time remaining and power source indicator
Volume
Backlight
adjustment slider
adjustment slider
GPSMAP 378/478 Owner’s Manual 3
4 GPSMAP 378/478 Owner’s Manual
GETTING STARTED > GETTING SATELLITE SIGNALS
Getting Satellite Signals
After you turn on the GPSMAP 378/478, the unit automatically
begins searching for satellites. The GPS page appears while the unit
is gathering satellite signals and acquiring a fix, which should take
only a few minutes. While the GPSMAP 378/478 is getting satellite
signals, the GPS page shows the status as “Acquiring Satellites.”
It might take a few minutes to acquire satellites and display your
current location on the map. To get signals more quickly, be sure the
antenna is raised to the up position shown in the image on page 1.
Viewing GPS Status with the GPS Tab
The GPS tab on the Main Menu provides a visual reference of
satellite acquisition, receiver status, and accuracy. The sky view and
signal strength bars give an indication of what satellites are visible
to the receiver and whether they are being tracked.
As the receiver locks onto satellites, a signal strength bar appears
for each satellite in view, with the appropriate satellite number
underneath each bar. The numbers below each bar represent the
particular satellite that is being received. Numbers above 33 indicate
WAAS satellites.
The sky view shows a birds-eye view of the position of each satellite
relative to the receiver’s last known position. The outer circle
represents the horizon (north up), the inner circle represents 45º
above the horizon, and the center point represents a position directly
overhead. You can also set the sky view to a Track Up configuration,
causing the top of the sky view to align along your current track
heading. Press MENU to change the configuration of the sky view.
GPS Tab
A power source indicator shows the unit is operating off
NOTE: While acquiring satellites, the Map Page may display
the wrong location, such as China. This does not mean your unit
has the wrong data loaded; it means you need to wait a few more
minutes to acquire satellites and find your current location.
power ( ), that the unit is charging ( ), or that an
external power source is in use ( ).
battery
GETTING STARTED > GETTING SATELLITE SIGNALS
Signal
strength bars
Sky view
GPS Page
Receiver
status field
Power
source
indicator
The progress of satellite acquisition is shown in three stages:
• No signal strength bars—the receiver is looking for the
satellites indicated.
• White signal strength bars—the receiver has found the
satellite and is collecting data.
• Green signal strength bars—the receiver has collected the
necessary data from this satellite.
When the GPSMAP 378/478 collects the necessary data from the
best satellites in view to calculate a fix, the status field indicates the
status of the receiver. The unit then updates the location, date and
time.
Receiver Status
The Receiver Status field shows one of the following conditions:
• Searching the Sky—the receiver is looking for satellites.
• AutoLocate—the receiver is looking for any satellite whose
almanac was collected, which can take up to five minutes.
• Acquiring Satellites—the receiver is looking for and collecting
data from satellites visible at its last known or initialized location
but has not acquired a fix.
• 2D GPS Location—At least three satellites were acquired and a
two-dimensional position fix was calculated. “2D Differential”
appears when you are receiving DGPS corrections in 2D
mode, and a “D” appears on the strength bar of satellites being
corrected.
• 3D GPS Location—At least four satellites were acquired and a
three-dimensional fix was calculated. “3D Differential” appears
when you are receiving DGPS corrections in 3D mode, and a “D”
appears on the strength bar of satellites being corrected.
• Lost Satellite Reception—the receiver is no longer tracking
enough satellites for a 2D or 3D fix.
• Receiver Not Usable—the receiver is unusable, possibly due to
interference or abnormal satellite conditions. Turn the unit off
and back on to reset it.
• Simulating GPS—the receiver is in Simulator Mode.
• GPS Off—the GPS receiver is turned off.
GPSMAP 378/478 Owner’s Manual 5
GETTING STARTED > GETTING SATELLITE SIGNALS
GPS Options
Press MENU twice to open the Main Menu. Use the ROCKER to
highlight the GPS tab. Press MENU to open the options menu.
GPS Tips
While the receiver is gathering information, your location on the
map might appear different from where you are actually located.
As soon as the receiver gathers enough satellite information, your
proper location appears on the map.
Any time you have traveled more than 600 miles with the GPS
receiver turned off, the receiver may take longer than normal to
initialize and find your location.
The GPS receiver can lose satellite signals due to interference from
such items as buildings, tunnels, and heavy tree cover. Monitoring
GPS Page Options Menu
Start/Stop Simulator—starts and stops Simulator Mode, which is
the GPS status is recommended.
To learn about GPS, see
helpful when learning how to use your unit.
Enable/Disable WAAS—enables or disables WAAS capability. See
page 123 of the “Appendix” for more information about WAAS.
Track Up Skyview/
North Up Skyview—orients the sky view
display on the GPS page to North up or Track up.
New Altitude
—allows you to manually enter your altitude.
New Location—allows you to enter a new location automatically or
using the map.
“Learning about GPS” on page 122.
6 GPSMAP 378/478 Owner’s Manual
GETTING STARTED > USING THE GPSMAP 376C KEYPAD
Using the GPSMAP 378/478 Keypad
.
PAGE/MODE Key
• Press to cycle through main pages in sequence and
exit a submenu page.
• Press and hold to switch between Marine and
Automotive modes.
QUIT Key
• Press to cycle through main pages in reverse
sequence, revert to the previous value in a data
entry field, or cancel an unintended function.
ENTER/MARK Key
• Press to select a highlighted option.
• Press and hold to mark your current location as a
waypoint.
MENU/Wx Key
• Press to open the options menu for the current page.
• Press twice to display the Main Menu.
• Press and hold to toggle XM WX weather on or off
on the Map Page.
POWER Key
• Press and hold to turn the unit on or off.
• Press and release to adjust the backlighting and
external speaker volume.
GPSMAP 378/478 Owner’s Manual 7
IN Key/OUT Key
• Press to adjust map scale to show a larger area with
less detail (zoom out) or a smaller area with more
detail (zoom in).
ROCKER
• Press up, down, left, or right to highlight options
and to enter data, or use to pan the arrow on the
Map Page.
NAV/MOB Key
• Press to display the navigation menu.
• In Marine Mode, press and hold to activate the
MOB function.
In Automotive Mode, press and hold to display the
Next Turn page and announce the next turn when
using the external speaker.
FIND Key
• Press to quickly search for and access user
waypoints, cities, and other items used for
navigation.
8 GPSMAP 378/478 Owner’s Manual
GETTING STARTED > USING THE GPSMAP 378/478
Using the GPSMAP 378/478
This section explains how to enter and select information with the
GPSMAP 378/478.
Understanding Terms
The GPSMAP 378/478’s advanced keypad system is designed to
allow quick, convenient selection of navigation options and data
entry. As you progress through this owner’s manual, you are directed
to press a specific key or highlight a field on the screen. When you
On-screen button
press ENTER to select the button.
Scroll bar
screen, a scroll bar appears along the right side of the list. To scroll
through a list, press up or down on the ROCKER.
Default—the factory setting saved in the unit’s memory. You can
change the settings, and you can also revert to the factory (default)
settings when you select Restore Defaults.
are directed to press a key, you should press and quickly release the
key. If the key needs to be held down for a period of time to start
a secondary function, the instructions will tell you to do so. When
a field is selected on the screen, it is highlighted in yellow. The
position of the highlight is controlled by the ROCKER.
The following terms are used throughout this manual:
Highlight—move the highlighted area on the screen up, down, left,
or right with the ROCKER to select individual fields. Moving the
highlight to a given location allows you to make a selection, begin
data entry, or scroll through a list.
Field—the location on a page where data or an option can be shown
and entered. Select (highlight) a field using the ROCKER to begin
entering data or selecting options.
—use the ROCKER to highlight a button and
—when viewing a list of items too long to appear on the
Field
Highlighted field
On-screen buttons
GPSMAP 378/478 Owner’s Manual 9
GETTING STARTED > USING THE GPSMAP 378/478
Cartography
The GPSMAP 378 system contains preloaded U.S. inland freshwater
cartography to its enhanced worldwide basemap information.
The preloaded inland maps offer 50-meter shoreline resolution
throughout the U.S., with even more detailed 10-meter resolution on
Selecting Options and Entering Data
To enter data and select options, use the ROCKER to highlight,
select, or choose an item in a list or a field on the screen. Use the
ENTER key and the ROCKER to select options, enter names and
numbers in data fields, and activate your selections.
select lakes. Other details include depth contours, tide and current
data, boat ramps, mile markers, hazards, marinas, campgrounds, area
roads, and more.
The GPSMAP 478 system contains preloaded marine map detail
To select and activate an option:
1. From any page, press MENU. An options menu appears with
2. Use the ROCKER to move the highlight up, down, right, or
utilizing the new BlueChart® g2 technology. Coverage is for U.S.
coastal areas, including Alaska and Hawaii. Features include
3. Press ENTER to select the feature. Another window with
integrated mapping, tide data, navaids, marinas, boat ramps, roads,
and more.
a list of optional features for that page.
left on the menu to the option you want.
more options might appear. If so, select an option and press
ENTER again.
Selecting an option from an options menu
GETTING STARTED > USING THE GPSMAP 378/478
To exit a menu or return to the previous setting:
Press QUIT. The QUIT key moves backward through your
steps. Press QUIT repeatedly to return to the starting page.
To select an on-screen button:
On a page with on-screen buttons, use the ROCKER to
highlight an on-screen button, and press ENTER.
On-screen
button
To mark your current location as a waypoint, press and hold
ENTER/MARK until the New Waypoint Page appears.
To enter data in a data field:
1. Use the ROCKER to highlight the data field you want, and
press ENTER to select the field.
2. Press up or down on the ROCKER to select characters.
Press right to move to the next character or press left to
move back to the previous character. If there are two lines of
data, keep pressing right on the ROCKER to drop to the next
line.
Entering
data
TIP: To clear the entire data field, highlight the left-most
character field and press left on the ROCKER again.
3. Press
ENTER.
Not all fields are programmable. When you are on a page with fields
that are not selectable, the highlight skips over them.
10 GPSMAP 378/478 Owner’s Manual
GETTING STARTED > SIMULATOR MODE
Restoring Default Settings
You can restore factory defaults for the following Main Menu tabs:
Track, Alarms, Display, Sound, and Setup. For more information
about the Main Menu, see the “Main Menu” section beginning on
page 69.
To restore
1. Press MENU twice to open the Main Menu.
2. Use the ROCKER to highlight a tab, and then press MENU to
open the options menu.
default settings:
Using the Databases
Optional Garmin data cards and MapSource CD-ROMs enhance
the versatility of your GPSMAP 378/478. With optional MapSource
BlueChart information and g2 you can view information for outside
the U.S. that is not already pre-loaded.
The included USB Interface Cable or an PC Interface Cable (with a
serial connector) is used to transfer MapSource CD-ROM data to the
optional data card.
See the Garmin Web site at
compatible MapSource products.
Setup Tab Options Menu
4. Highlight Restore Default, and press ENTER.
www.garmin.com/cartography/ for
GPSMAP 378/478 Owner’s Manual 11
12 GPSMAP 378/478 Owner’s Manual
GETTING STARTED > SIMULATOR MODE
Simulator Mode
To help you get to know your GPSMAP 378/478, you can use
the unit in Simulator Mode. Simulator Mode is also helpful for
practicing with the unit indoors or when no satellite signals are
available. All waypoints and routes created in Simulator Mode are
retained in memory for future use.
By unplugging the optional GXM 30 antenna and placing the unit in
Simulator Mode, you can view simulated weather information.
NOTE: Do not attempt to navigate using Simulator Mode. When
the unit is set to Simulator Mode, the GPS receiver is turned off.
Any satellite signal strength bars shown are only simulations and
do not represent the strength of actual satellite signals.
Starting Simulator Mode
You can start Simulator Mode from the Setup tab or the GPS tab on
the Main Menu.
To put the unit into Simulator Mode using the GPS tab:
1. Press MENU twice to open the Main Menu.
2. Highlight the GPS tab.
3. Press MENU to open the GPS tab options menu.
4. Highlight
Start Simulator, and press ENTER.
Entering a New Location
Use the GPS options menu to enter a new location to simulate from.
To enter a New Location using the map:
1. Press MENU twice, and then highlight the GPS tab.
2. Press MENU to open the options menu.
3. Highlight New Location, and press ENTER.
4. Highlight Use Map, and press ENTER.
5. Use the ROCKER to move the panning arrow to the location
GPS tab
Starting Simulator Mode from the GPS tab
you want on the map, and press ENTER.
GPSMAP 378/478 Owner’s Manual 13
BASIC OPERATION IN MARINE MODE > MARINE MODE PAGE SEQUENCE
BASIC OPERATION IN MARINE MODE
This section explains some of the more common operations you will perform with your GPSMAP 378/478, such as navigating to a
destination.
To
switch usage modes:
1. Press and hold the PAGE/MODE key. The Usage Mode menu appears.
2. Use the ROCKER to select either Automotive or Marine, and press ENTER.
Marine Mode Page Sequence
The GPSMAP 378/478 offers two usage modes, Marine Mode (default) and Automotive Mode. The main pages are linked together in a series
that you can cycle through by pressing the PAGE key to move forward and the QUIT key to reverse. Each page also has an options menu
that allows you to customize each page to your preferences and/or select features. To view the options menu, press the MENU key.
Marine Mode features five main pages: Map, Compass, Highway, Active Route, and Position Data. An optional XM Audio Page can be
enabled in Marine Mode. The following examples show the main pages in Marine Mode with internal MapSource BlueChart detailed maps.
Marine Mode is the default mode for the GPSMAP 378/478. This manual first addresses the page, such as the Map Page, as it appears in
Marine Mode. The manual then describes the page as shown in Automotive Mode. There is an optional Sonar Page that only appears when a
GSD 21 or GSD 20 is connected. Refer to page 104 for more information.
Map Page
Compass Page
Highway Page
Active Route Page
Position Data Page
XM Audio Page
(Optional)
14 GPSMAP 378/478 Owner’s Manual
BASIC OPERATION IN MARINE MODE > NAVIGATING IN MARINE MODE
Navigating in Marine Mode
There are several ways to begin navigating to a point:
• Select a point on the map and press NAV
• Press NAV
to activate a new route using the Find Menu or
.
activate a saved route or track.
• Press the
FIND key to search for a particular item and create
a route to it.
Marine Mode and Automotive Mode are similar. Most of the
features discussed here also apply to Automotive Mode.
Press NAV to open the Navigate menu, which contains the following
options:
When you are actively navigating, you will see a magenta line that
always runs from your current location to the destination on the Map
Page. You can use the Map Page, Compass Page, Highway Page,
and Position Data Page to help navigate to your destination.
Initiating Navigation
There are several different ways to initiate navigation. Press the
NAV key to open the Navigate menu. Using one of the navigation
options, you can quickly create a route to your destination. In
Marine Mode, you can initiate Man OverBoard (MOB) navigation,
which places a waypoint in the location and then navigates you back
to that location. You can also initiate navigation through the Find
Go To Point
from the Find menu to navigate to.
Navigate Route—allows you to select a route to navigate. You
can also activate a saved route through the Routes tab on the Main
Menu. For information about routes, see page 19.
Navigate Track (TracBack
navigate. You can also activate a saved track through the Track tab
of the Main Menu. For information about tracks, see page 13.
MOB (Man OverBoard)—creates a MOB waypoint and navigates
to that location.
menu.
Navigate Menu in Marine Mode
—allows you to select a waypoint or point of interest
)—allows you to select a saved track to
GPSMAP 378/478 Owner’s Manual 15
BASIC OPERATION IN MARINE MODE > NAVIGATING IN MARINE MODE
To go to a highlighted map item:
1. Use ROCKER to highlight the item to which you want to
navigate on the Map Page.
2. Press NAV. Go To <point name> appears in the list of
options and is automatically highlighted. If you selected an
area of the map that is not a map feature, Go To MAP Point
is listed. Select Go To <point name> or Go To MAP Point,
and press ENTER.
Navigate Menu
3. Follow the magenta route created on the Map Page. Follow
the turn-by-turn route (auto-route) by using the Next Turns
Page and Current Route Page. If you are using the external
speaker, follow the voice prompts.
To start a new route using the Find Menu:
1. Press the NAV key to open the Navigate menu.
2. Highlight New Route (or Go To Point when in Marine Mode)
and press ENTER to open the Find menu.
3. From the Find menu, highlight Waypoints and press ENTER.
(You can also choose to go to other points, such as Cities or
Tide Stations from this list. The steps vary only slightly from
those listed for Waypoints.)
4. Select a waypoint from the list, and press ENTER to open the
Waypoint Review Page.
Waypoint Review Page
5. With the Go To button highlighted, press ENTER to begin
navigation.
16 GPSMAP 378/478 Owner’s Manual
BASIC OPERATION IN MARINE MODE > NAVIGATING IN MARINE MODE
To search for an item and route to it:
1. Press FIND to open the Find menu.
2. Using the ROCKER, highlight a category, such as Cities,
and press ENTER.
3. Press ENTER and use the ROCKER to begin entering the
letters contained in the item name. The list begins to sort
by the items that contain the letters you are entering. Press
ENTER when finished.
3. Highlight the item from the list and press ENTER.
4. Press ENTER when the Go To button is highlighted.
For complete information about finding an item, see the “Finding an
Item” section.
Man OverBoard (MOB)
Use the MOB function to simultaneously mark your current location
and create a direct route back to that location for quick response to
emergency situations.
To activate the MOB function:
1. Press and hold the NAV/MOB key, or press the NAV/MOB
key twice.
2. Press ENTER to confirm and begin navigating to the MOB
location.
When a MOB is activated, a MOB waypoint with an international
MOB symbol is created, and the unit begins actively navigating to
that point. Use any of the Navigation Pages to guide you back to the
MOB point. The MOB waypoint is stored in the waypoint list and
can be deleted like any other waypoint.
GPSMAP 378/478 Owner’s Manual 17
BASIC OPERATION IN MARINE MODE > FINDING AN ITEM
Finding an Item
Use the Find menu to easily search the stored waypoints and points
of interest. To open the Find menu, press the FIND key.
The Find menu is comprised of several default categories:
Waypoints, Cities, Exits, Transportation, Tide Stations, and Weather
Data. Additional categories appear depending on the optional
BlueChart or MapSource data card in the unit.
Find Menu
Follow the directions on page 16 to search for an item near your
current location and then route to it.
Using the Find From Feature
The Find option also supports a “find from” feature that allows
you to center your search around an item you have just found. For
example, you search for Restricted Areas and the search shows an
“Anchoring Prohibited” search result. If you press FIND again, you
will see “From Anchoring Prohibited” as the new search from point.
You can also use the Find feature to center your search from any
waypoint, route list entry, map item, or tide station. Highlight the
item you want to find from and press the FIND key.
To find an item from another
1 Open the Map Page. Use the ROCKER to pan the arrow
(pointer) to the location you want, and press FIND. The Find
menu opens, displaying “From Map Pointer.” The list of items
is sorted to display items nearest the selected location.
2. Using the ROCKER, highlight a category from the list, and
press ENTER.
3. Using the ROCKER, highlight an item from the list, and press
ENTER. The item’s information page automatically opens,
allowing you to save the item as a waypoint, show the item
on the map, or automatically create a route to (Go To) the
item.
location on the map:
18 GPSMAP 378/478 Owner’s Manual
BASIC OPERATION IN MARINE MODE > FINDING AN ITEM
To find an item from another location:
1. From any page, press FIND.
2. Using the ROCKER, highlight a category from the list, and
press ENTER.
3. Press MENU to open the options menu.
Find From Options Menu
4. Highlight Near Other and press ENTER. If you are actively
following a route, you can also choose one of the other
options listed in the Find From list.
5. Select a reference location on the map, and press ENTER.
The list shows items nearest to the new map location.
To find an item near another item:
1. Press FIND. The Find menu appears
2. Highlight the item you want to Find From.
3. Press FIND. The Find menu opens again with items near the
previously-selected item. Search for the item you want.
Recently Found Items
The Recently Found Page shows a list of the items you have
searched for or gone to recently.
To view recently found items:
1. Press FIND to open the Find menu.
2. Use the ROCKER to highlight Recently Found, and press
ENTER. The Recently Found Page appears.
3. Press MENU to display the options menu:
Show Find History—allows you to toggle between displaying the
items you have searched for recently (Find History) and the items
you have recently created a Go To for (Go To History).
Remove Point—removes the point that is highlighted in the list.
GPSMAP 378/478 Owner’s Manual 19
BASIC OPERATION IN MARINE MODE > FINDING AN ITEM
Viewing the Information Page
Each item on the map and each item listed in the Find menu results
list has an Information Page.
To view
1. Highlight a point on the map or in the search results list, and
An Information Page appears with details about the item in
2. Press PAGE or QUIT to exit the Information Page. You can
details about an item:
press ENTER.
a tabbed format. Depending on the type of item, additional
options are available for viewing the item on the Map,
viewing a tide chart, viewing the list of maps on your data
card, and viewing the next item in the search results list.
Map Feature Information Page
also highlight one of the on-screen buttons and press ENTER
to perform that operation.
Find Menu Options
To view additional options for the Find menu, press FIND, and then
press MENU. The following options are available:
• Enable Auto Arrange
menu. Disable Auto Arrange and Restore Default options
appear when you select Enable Auto Arrange.
• Near Other—allows you to select a new location from which
to compile the Find items lists. Using the ROCKER, move
the map arrow to the location you want, and press ENTER.
• Map Information—shows information about the detailed
map data stored on the data card and allows you to select
which maps appear on the Map Page.
Additional selections are included in the options menu when you are
navigating:
• Near Next—compiles the Find items lists based on the next
turn in the route.
• Near Destination—compiles the Find items lists based on the
route destination.
• Near Current Route—compiles the Find items lists based on
the active route.
—automatically arranges the Find
20 GPSMAP 378/478 Owner’s Manual
BASIC OPERATION IN MARINE MODE > CREATING AND USING ROUTES
Creating and Using Routes
You can create and store up to 50 reversible routes, with up to 300
To create a route using the Find Menu:
1. Press MENU twice to open the Main Menu. Highlight the
points each.
2. Press MENU to display the Route options menu. Select New
Creating a Route
Use the Route tab on the Main Menu to create a route in one of two
ways. You can select waypoints from the Find Menu, allowing you
to see a list of the route points as you create the route, or you can
select waypoints or map items from the Map Page, allowing you to
see each route point on-screen as you create the route.
Route Tab with the Route List
3. Press ENTER to find items to add to the route. The Find
4. Using the methods discussed in the “Finding an Item” section
Route tab.
Route, and press ENTER, or highlight the first available
blank route slot and press ENTER. The Route Review Page
automatically opens, showing a blank route.
Menu opens.
beginning on page 17, select a point to add to your route.
When you find an item, highlight OK and press ENTER to
add the point to the route. Repeat this step until you finish
defining all route points.
Creating a New Route on Route Review Page
GPSMAP 378/478 Owner’s Manual 21
BASIC OPERATION IN MARINE MODE > CREATING AND USING ROUTES
To create a route graphically:
1. Press MENU twice to open the Main Menu. Highlight the
Route tab.
2. Press MENU to open the Route options menu. Select New
Route and press ENTER.
3. Highlight the first blank slot in the Route List Page, and press
MENU. Use the ROCKER to highlight Edit on Map and
press ENTER.
4. Use the ROCKER to highlight the location you want to add
and press ENTER.
If you have selected an area of the map that is not a feature
or waypoint, a new waypoint is created for that location.
Press ENTER on the New Waypoint Page to save the
location as a waypoint and continue adding points to your
route. You can edit the properties of this waypoint as you can
with any waypoint.
5. Repeat until you have added all points to the route.
6. When finished, press QUIT twice to return to the Route
Navigating a Saved Route
Use the Navigate Route option to easily select and navigate a saved
route.
To navigate a saved route:
1. In Automotive Mode, press the NAV key.
2. Use the ROCKER to highlight Navigate Route, and press
3. Highlight a route, and press ENTER.
Review Page.
OR
Press MENU, highlight Edit as Text, and press ENTER to
view the Route Review Page.
ENTER.
Select a route
from list
Creating a new route on the map
22 GPSMAP 378/478 Owner’s Manual
BASIC OPERATION IN MARINE MODE > CREATING AND USING ROUTES
Editing a Route
After you create a route, use the Route Review Page to edit, change
the name, and review route points of a selected route.
To change the name of the route:
1. Press MENU twice to open the Main Menu. Highlight the
Route tab.
2. Use the ROCKER to highlight the name of the route, and
press ENTER.
3. With the Route Review Page open, use the ROCKER to
highlight the route name field at the top of the page and
press ENTER.
Enter a new
Route name
here
Route Review Page
4. Use the ROCKER to enter the route name, and press
ENTER.
To review individual route points:
1. Press MENU twice to open the Main Menu. Highlight the
Route tab.
2. From the Route List Page, use the ROCKER to highlight the
name of the route, and press ENTER.
3. From the Route Review Page, highlight a point, and press
ENTER.
4. On the Point Review Page, choose Next (highlight the next
point on the route list), Show Map (show the point on a map
window), or Save (save the point as a waypoint) and press
ENTER. If the route point is a user waypoint, you can edit
any of the waypoint properties on the Waypoint Page (see
the “Creating and Using Waypoints” section beginning on
page 25 for details).
When you return to the Route Review Page, the next point in the
route is automatically highlighted. You can review each point on the
route by pressing ENTER repeatedly.
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